Re: How to debug complete kernel lock-ups

2007-10-31 Thread Ray Lee
On 10/31/07, John Sigler <[EMAIL PROTECTED]> wrote: > "It seems that the PCI clock on this system has a rather large over- and > undershoot and we suspect that the undershoot (of ~1V) is causing a drop > in the core voltage of the on-board FPGA which results in lockup of the > firmware. Both the un

Re: How to debug complete kernel lock-ups

2007-10-31 Thread John Sigler
John Sigler wrote: John Sigler wrote: I have an x86 system with two PCI slots, in which I inserted two specialized output cards (Dektec DTA-105). http://www.dektec.com/Products/DTA-105/ (They provide an open source driver.) My problem is: when I write to the 4 ports (each card has 2 ports) "

Re: How to debug complete kernel lock-ups

2007-10-24 Thread Grant Grundler
On Wed, Oct 24, 2007 at 11:17:40AM +0200, John Sigler wrote: ... > I've tested with a vanilla 2.6.22.10 kernel (no PREEMPT_RT patch). > That system also locks up and remains completely unresponsive (I can't open > new ssh sessions, the system won't answer ICMP echo requests). > > How do driver wri

Re: How to debug complete kernel lock-ups

2007-10-24 Thread Ray Lee
On 10/24/07, John Sigler <[EMAIL PROTECTED]> wrote: > > I have an x86 system with two PCI slots, in which I inserted two > > specialized output cards (Dektec DTA-105). > > > > http://www.dektec.com/Products/DTA-105/ > > (They provide an open source driver.) > > > > My problem is: when I write to th

Re: How to debug complete kernel lock-ups

2007-10-24 Thread Greg KH
On Wed, Oct 24, 2007 at 11:17:40AM +0200, John Sigler wrote: > John Sigler wrote: > >> I have an x86 system with two PCI slots, in which I inserted two >> specialized output cards (Dektec DTA-105). >> http://www.dektec.com/Products/DTA-105/ >> (They provide an open source driver.) >> My problem is:

Re: How to debug complete kernel lock-ups

2007-10-24 Thread John Sigler
John Sigler wrote: I have an x86 system with two PCI slots, in which I inserted two specialized output cards (Dektec DTA-105). http://www.dektec.com/Products/DTA-105/ (They provide an open source driver.) My problem is: when I write to the 4 ports (each card has 2 ports) "at the same time" (n

How to debug complete kernel lock-ups

2007-10-23 Thread John Sigler
Hello everyone, I have an x86 system with two PCI slots, in which I inserted two specialized output cards (Dektec DTA-105). http://www.dektec.com/Products/DTA-105/ (They provide an open source driver.) My problem is: when I write to the 4 ports (each card has 2 ports) "at the same time" (not r